The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Phenylenediamine-Based FeNx/C Catalyst with High Activity for Oxygen Reduction in Acid Medium and Its Active-Site Probing
Abstract
High-temperature pyrolyzed FeN(x)/C catalyst is one of the most promising nonprecious metal electrocatalysts for oxygen reduction reaction (ORR). However, it suffers from two challenging problems: insufficient ORR activity and unclear active site structure. Herein, we report a FeN(x)/C catalyst derived from poly-m-phenylenediamine (PmPDA-FeN(x)/C) that possesses high ORR activity (11.5 A g(-1) at 0.80 V vs RHE) and low H2O2 yield (<1%) in acid medium. The PmPDA-FeN(x)/C also exhibits high catalytic activity for both reduction and oxidation of H2O2. We further find that the ORR activity of PmPDA-FeN(x)/C is not sensitive to CO and NO(x) but can be suppressed significantly by halide ions (e.g., Cl(-), F(-), and Br(-)) and low valence state sulfur-containing species (e.g., SCN(-), SO2, and H2S). This result reveals that the active sites of the FeN(x)/C catalyst contains Fe element (mainly as Fe(III) at high potentials) in acid medium.
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Metadata
- Authors
- Wang, Q., Zhou, Z.-Y., Lai, Y.-J., You, Y., Liu, J.-G., Wu, X.-L., Terefe, E., Chen, C., Song, L., Rauf, M., Tian, N., & Sun, S.-G.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-07-23
- Volume
- 136
- Issue
- 31
- Pages
- 10882-10885
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2319487883
- Cited by
- 631
- References
- 29
- FWCI
- 19.98
- Type
- journal article
- Language
- en
- Open access
- closed
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